反应详情

A slurry of water (20 μL, 0.10 mmol), 1-(4-methoxyphenyl)-1,5-dihydro-2H-pyrrol-2-one (200 mg, 1.06 mmol) and N-{2-oxo-2-[(3R)-pyrrolidin-3-ylamino]ethyl}-3-(trifluoromethyl)benzamide (666 mg, 2.12 mmol) was heated to 90° C. overnight. The crude mixture was subjected to flash chromatography (1% NH4OH, 15% MeOH, EtOAc) to afford, as a mixture of diastereomers, N-(2-{[(3R)-1′-(4-methoxyphenyl)-5′-oxo-1,3′-bipyrrolidin-3-yl]amino}-2-oxoethyl)-3-(trifluoromethyl)benzamide as a white solid (115 mg, 21%). 1H-NMR (CDCl3) δ: 1.50-1.82 (m, 1H), 1.83-2.00 (m, 1H), 2.18-2.40 (m, 1H), 2.40-2.58 (m, 1H), 2.56-2.81 (m, 3H), 2.83-3.00 (m, 2H), 3.29-3.33 (m, 2H), 3.60-3.71 (m, 2H), 3.79 (s, 3H), 4.04-4.20 (m, 2H), 4.38-4.47 (m, 1H), 6.94 (m, 2H), 7.19-7.30 (m, 2H), 7.69-7.80 (m, 2H), 7.99 (d, J=7.8 Hz, 1H), 8.18 (s, 1H). MS m/z: 505 (M+1).